This guy…

Zndrsplt, Eye of Wisdom
4U
Legendary Creature – Homunculus
Partner with Okaun, Eye of Chaos (When this creature enters the battlefield, target player may put Okaun into their hand from their library, then shuffle.)

At the beginning of combat on your turn, flip a coin until you lose a flip.

Whenever a player wins a coin flip, draw a card.

1/4

… is apparently the best friend of this guy:

Okaun, Eye of Chaos
4R
Legendary Creature – Cyclops Berserker
Partner with Zndrsplt, Eye of Wisdom (When this creature enters the battlefield, target player may put Zndrsplt into their hand from their library, then shuffle.)

At the beginning of combat on your turn, flip a coin until you lose a flip.

Whenever a player wins a coin flip, double Okaun’s power and toughness until end of turn.

3/3

Okay, you don’t have to be best friends to work together well, but whatever.

Clearly, this deck needs a lot of coin flipping. At least as clearly, this isn’t going to be a competitive deck. The thing is, with the Zndr… whatever… any flips are going to be good, so we can play subpar ones as well.

First, we’ll need this:

The problem is, since the cards that have coin flipping can’t be too powerful, so they are generally pretty bad. Out of the 59 previously printed ones in this color identity, these are the ones I have any interest in playing:

Not very many. The problem is that in general I want to be able to repeatably flip the coin. It just seems to be very hard to do that. Also, there’s many we have no interest in playing in this deck. Take [scryfall]Boompile[/scryfall]. Definitely a powerful card, but the problem is that winning those tosses has limited value if the creatures are going to die. Same problem with [scryfall]Puppet’s Verdict[/scryfall]. One member of the partnership will just die.

So, what would I want to play in these colors? I want to be able to dig to my Thumb, since it’s quite good in the deck. So, let’s start with that.

Due to the limited number of these spells in our deck, we might want some of them back.

I don’t think GDD will be very good here, but I do like it, so it’s in the deck.

Random blue-red cards I like for whatever reaason:

Since we have so many things that deal with instants and sorceries in so many ways, I guess we have to put some of them into the deck as well.

Since we now have too many cards, so we can’t really play everything, I’m cutting a few creatures. Although there’s a possible loop here with our bounce spells, I’ll cut [scryfall]Menomonic Wall[/scryfall] and I have a feeling [scryfall]Dominus of Fealty[/scryfall] will never do anything, so I’ll cut that one too. Finally, I’ll take out [scryfall]Arjun, the Shifting Flame[/scryfall], because any sort of plan with that thing becomes impossible. It would fit the flavor of the deck, but I do like to actually play a game as well.

This does only leave room for 42 lands, which is lower than I would like to go, but we do have some cantrips, so I guess it’ll have to do. Actually 40 lands, [scryfall]Wayfarer’s Bauble[/scryfall] and [scryfall]Armillary Sphere[/scryfall].

Our list might therefore look something like this:

[deck]
[commanders]
Zndrsplt, Eye of Wisdom
Okaun, Eye of Chaos
[/commanders]
[spells]
Chance Encounter
Molten Birth
Puppet’s Verdict
Ral Zarek
Krark’s Thumb
Wirefly Hive
Secrets of the Golden City
Treasure Cruise
Dig Through Time
Pull from the Deep
Shreds of Sanity
Spelltwine
The Mirari Conjecture
Volcanic Vision
Epic Experiment
Fevered Visions
Firemind’s Foresight
Saheeli Rai
Swerve
Quicken
Dispel
Counterspell
Dissipate
Dissolve
Hour of Devastation
Sweltering Suns
Opt
Peek
Pongify
Visions of Beyond
Aetherize
Aetherspouts
Star of Extinction
Abrade
Into the Roil
Blink of an Eye
Wayfarer’s Bauble
Armillary Sphere
[/spells]
[creatures]
Mulldrifter
Viashino Sandswimmer
Frenetic Efreet
Creepy Doll
Bloodwater Entity
Archaeomancer
Ghitu Chronicler
Goblin Dark-Dwellers
Nucklavee
Izzet Chemister
Hypersonic Dragon
Jori En, Ruin Diver
Kraum, Ludevic’s Opus
Nin, the Pain Artist
The Locust God
Torrential Gearhulk
Dack’s Duplicate
Enigma Drake
Spellheart Chimera
Etherium-Horn Sorcerer
[/creatures]
[lands]
Steam Vents
Thawing Glaciers
Myriad Landscape
Cascade Bluffs
Temple of Epiphany
Izzet Boilerworks
Spirebluff Canal
Sulfur Falls
Shivan Reef
Command Tower
Coral Bluff
Dormant Volcano
Wandering Fumarole
Arch of Orazca
13 Island
13 Mountain
[/lands]
[/deck]